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1.09406

Buffer solution

(potassium hydrogen phthalate), traceable to SRM from NIST and PTB pH 4.01 (25°C) Certipur®

別名:

Buffer solution pH 4.01 (Potassium hydrogen phthalate)

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この商品について

NACRES:
NA.25
UNSPSC Code:
12161704
テクニカルサービス
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grade

certified reference material

Quality Level

300

product line

Certipur®

pH

4.01 (25 °C in H2O)

application(s)

environmental
food and beverages
general analytical
industrial qc
pharmaceutical

format

mixture

storage temp.

15-25°C

General description

The potassium hydrogen phthalate buffer solution is prepared gravimetrically with potassium hydrogen phthalate and high-purity water. It is analyzed using a combined glass electrode following a 5-point calibration method, in accordance with DIN 19268, against certified primary reference standards as per DIN 19266.

Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.

Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.

Application

It is used in analytical procedures for the calibration, qualification, and monitoring of pH measuring instruments and as a control for testing other buffer solutions.

Features and Benefits

  • Measured and qualified in an ISO/IEC 17025 and ISO 17034 accredited laboratory
  • Traceable to SRMs from NIST and primary certified reference standards from PTB
  • Ready-to-use solution available in a sealed bottle and an innovative Titripac® packaging for positive environmental impact due to reduced waste generation
  • Long-lasting with a shelf life of 3 years
  • Accompanied with a detailed certificate of analysis (CoA) for an effective audit

Legal Information

CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany
Titripac is a registered trademark of Merck KGaA, Darmstadt, Germany

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保管分類

12 - Non Combustible Liquids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

試験成績書（COA）

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グローバルトレードアイテム番号

カタログ番号GTIN
1.09406.100004022536114149
1.09406.050004027269386740